This comprehensive DIY guide will help you undertake the task of replacing your windows to improve your home’s functionality and appearance. First, accurately measure your existing windows from the inside to ensure a perfect fit for the new ones. For your windows replacement near Naperville select energy-efficient windows that suit your home’s architectural style. Essential tools for the job include a pry bar, hammer, and screwdriver. Begin by removing the old window’s sashes and frame, then dry fit the new window to check its size. Secure it in place using shims, ensuring it’s perfectly level, and fasten it with screws. Seal all gaps with insulating foam and caulk to enhance energy efficiency and install new trim for a clean finish.